I continually have the taste of blood in my throat along with bad breath and the sensation of swelling up high in the back of my throat. This is usually accompanied by an ache in my throat and ear canal. I am scheduled for a Gastroscopy in 2 weeks. I have been on various PPI's for over a year because my dr believes this is due to gerd but my symptoms have gotten worse not better and I am not experiencing any reflux etc associated with gerd. I am a very healthy eater but as soon as I eat I get a horrible taste in my mouth that lasts hours usually followed by the taste of blood. I also take levothyroxin for hypothyroidism and have been wondering if the swelling I'm feeling is my thyroid. Thankyou for addressing my question.